Stripe Integration Expert Review

We are looking for an experienced Stripe developer to review an existing Stripe payment implementation in our Next.js online ticketing website. The integration is already implemented. We need an expert to review the code and payment flow and provide professional feedback. Scope - Review the existing Stripe implementation. - Check payment flow, PaymentIntent/Checkout handling, and webhooks. - Review security and best practices. - Check error handling and duplicate payment/order prevention. - Identify any issues or improvements required. - Provide a brief expert assessment and recommendations. No new integration is required. This is strictly a technical review/audit. Please share your Stripe + Next.js experience and examples of similar reviews.